Continuity mistake: When the police truck is going down the hill, Jacquouille can't control it and you can see from behind the truck that he tries to exit from his seat but in the next shot, he's still on the seat.
Continuity mistake: When Jacquard travels to the future, he's transformed in "a brown stuff", but it is smaller in the next shot.
Continuity mistake: When the old couple is trying to escape from Godefroy and Jacquouille, the man goes outside to close the rear door, but it's still opened the shot later.
Continuity mistake: When Jean-Pierre is disturbed by Jacquouille when he is working on the teeth of the snob woman, he walks to the window to see what's going on. The window is stripped frosted and clear but in one shot, it is completely clear.
Continuity mistake: After Jacquouille throws the knife at the man that's living with Cora, Béatrice comes forward in front of Jacquouille and Lady Ginette to say that it was the man's fault, but after Godefroy's daughter comes onto the scene, it is visible that Béatrice is standing behind Lady Ginette and Jacquouille.
Continuity mistake: When Lady Ginette is in the kitchen after the fire, there's a lot of smoke. It has disappeared when she opens the freezer to take ice and there's smoke again in the following shot.
Continuity mistake: When the old couple is trying to escape from Jacquouille and Godefroy, the window on the roof of their car is opened but it closes itself some shots later.
Continuity mistake: When Jacquouille and Lady Ginette arrive at Béatrice's house, there's one shot when the wind is so strong that they have difficulty walking normally but there's no wind in the rest of the scene.
Continuity mistake: When Jacquouille and Lady Ginette are driving the car after the supermarket, Lady Ginette has sunglasses on during one shot from behind, when they are going to pass by a crossroad. She doesn't have them during the rest of the scene.
Continuity mistake: When Godefroy and Jacquouille are drinking wine in Cora's castle, the color of Godefroy's wine changes from dark red to pink during the scene.
Continuity mistake: When the old couple is trying to escape from Godefroy, the road is in the fields but in the following shots, they are in the forest.
Continuity mistake: When Lady Ginette takes the wine bottles to the kitchen, she doesn't takes her bags but when Jacquouille goes to see the television, her bags are gone.
Continuity mistake: In the opening scene, when Godefroy reappears in Middle-Age, he is going to shoot an arrow at the Duke, thinking it's a bear. He remembers what the wizard says to him and turns his body from right to left to avoid hitting the duke and to hit the Witch but in the close up of the arrow, he turns from left to right. It's not due to a different camera angle.
Continuity mistake: When Jacquouille travels to the Middle-Age, he is transformed in "a brown stuff" that fell on the car. Later, when he returns in modern time, the stuff is almost completely gone, but nobody could have washed it because they didn't notice the water in the car.
Continuity mistake: When Jacquouille is annoying the fireman that are trying to extinguish the fire, the hose of the chief on the edge of the window keeps changing place.
Continuity mistake: Before hiding the jewels in the freezer, Jacquouille removes almost everything in it but when Lady Ginette finds them, there's a bag of frozen vegetables on the cigar box.
Continuity mistake: When Lady Ginette takes some bottles of alcohol in the bar and Béatrice interrupts her, the ashtray that was on it disappears.
Continuity mistake: When Ginette is reading a magazine in the kitchen when everybody is trying to extinguish the fire, there's a bottle without tag and a sausage on the board. The sausage disappears in the next shot and a tag appears on the bottle. And after that, there's many bottles.
Continuity mistake: During the fire, Jacquouille throws equipment everywhere, thinking it will helps the firemen. Sometimes the pipes are brown and sometimes they are red.
Continuity mistake: After Jacquouille and Lady Ginette enters the house, Béatrice prepares the table. She takes some dishes and a green tablecloth. When she put it on the table, it is beige.
